Metal corrugated pipe internal rolling forming device
阅读说明:本技术 一种金属波纹管内部滚压成形装置 (Metal corrugated pipe internal rolling forming device ) 是由 蒋兰芳 何意 冯毅雄 孙敏 梁晓军 陶晓辉 祝安 于 2019-12-17 设计创作,主要内容包括:本发明公开一种金属波纹管内部滚压成形装置,其包括滚压成形模块、装夹模块和连接模块。滚压成形模块又包括外壳,传动机构和约束机构,约束机构安装于传动机构上,用来约束传动机构的自由度,传动机构又安装于外壳之中;连接模块一端与滚压成形模块连接之后夹紧固定在装夹模块上,另一端与电机相连。使用时,将滚压成形模块伸入到高速旋转的金属薄壁管内部指定位置,通过控制电机的转速与转数以控制滚压成形模块中工具头的径向进给速度与进给量,以便成形出不同质量与不同形状的目标制件。该装置模块化设计,通用性强。(The invention discloses an internal rolling forming device of a metal corrugated pipe, which comprises a rolling forming module, a clamping module and a connecting module. The rolling forming module comprises a shell, a transmission mechanism and a constraint mechanism, wherein the constraint mechanism is arranged on the transmission mechanism and used for constraining the degree of freedom of the transmission mechanism, and the transmission mechanism is arranged in the shell; one end of the connecting module is connected with the rolling forming module and then clamped and fixed on the clamping module, and the other end of the connecting module is connected with the motor. When the device is used, the roll forming module is stretched into a designated position inside the metal thin-wall pipe rotating at a high speed, and the radial feed speed and feed quantity of a tool head in the roll forming module are controlled by controlling the rotating speed and the rotating speed of the motor, so that target workpieces with different qualities and different shapes can be formed. The device modularized design, the commonality is strong.)
1. The device for roll forming the interior of the metal corrugated pipe is characterized by comprising a roll forming module (1), a clamping module (2) and a connecting module (3).
The roll forming module (1) comprises a shell (11), a transmission mechanism (12) and a constraint mechanism (13), wherein the constraint mechanism (13) is installed on the transmission mechanism (12) and used for constraining the degree of freedom of the transmission mechanism (12), and the shell (11) is used for wrapping and fixing the transmission mechanism (12) and the constraint mechanism (13);
the clamping module (2) comprises a base (21), a stop block (22), a sliding rail (23), a lead screw (24), a first pressing block (25), a second pressing block (26), a rotating handle (27), a clamp cover (28) and a T-shaped pressing tool (29), wherein one end of the base (21) is provided with a rectangular groove (211), the two stop blocks (22) are respectively fixed at two ends of the rectangular groove (211), the first pressing block (25) and the second pressing block (26) are arranged in the rectangular groove (211) in a sliding mode and are sleeved outside the lead screw (24) and the sliding rail (23), two ends of the lead screw (24) and the sliding rail (23) are supported on the stop block (22), and the rotating handle (27) is installed at one end of the lead screw (24) and used for achieving linkage of the rotating handle (27) and the lead screw (24); the clamp cover (28) is fixed on the base (21), and the T-shaped pressing tool (29) is screwed into the clamp cover (28) through a hole on the clamp cover (28);
the connecting module (3) comprises a tool shaft (31), a driving shaft (32) and a coupler (33), wherein the tool shaft (31) is a stepped hollow shaft, the outer sleeve of the stepped hollow shaft is sleeved on the driving shaft (32), one end of the driving shaft (32) is connected with a transmission mechanism (12) of the roll forming module (1), the other end of the driving shaft passes through the clamping module (2) and is connected with the motor (4) through the coupler (33), one end of the tool shaft (31) is fixed on a shell (11) of the roll forming module (1), and the other end of the tool shaft is located in the clamping module (2) and is used for being clamped by the clamping module (2).
2. The inside roll forming device of the metal corrugated pipe according to claim 1, characterized in that the transmission mechanism (12) comprises two first support rods (121), two second support rods (122), a first cylindrical head bolt (123), a second cylindrical head bolt (124), a lead screw transmission shaft (125), four third cylindrical head bolts (126), two stud bolts (127) and two tool heads (128), wherein one end of each first support rod (121) is provided with a first U-shaped groove (1211), the other end of each first support rod is provided with a second U-shaped groove (1212), a first through hole (1213) is formed at the end of each first U-shaped groove (1211), a second through hole (1214) is formed at the end of each second U-shaped groove (1212), and a first threaded hole (1215) is formed in the middle of each rod;
one end of the second supporting rod (122) is provided with a third U-shaped groove (1221), the other end of the second supporting rod is provided with a fourth U-shaped groove (1222), a third through hole (1223) is formed at the end of the third U-shaped groove (1221), a fourth through hole (1224) is formed at the end of the fourth U-shaped groove, and a second threaded hole (1225) is formed in the middle of the rod;
the shaft sections of the first cylindrical head bolt (123), the second cylindrical head bolt (124) and the third cylindrical head bolt (126) comprise a section of smooth shaft section and a section of thread section;
the optical axis section of first cylinder head bolt (123) be equipped with first left-handed screw through-hole (1231), the optical axis section of second cylinder head bolt (124) be equipped with first right-handed screw through-hole (1241). The end of the second U-shaped groove (1212) of the first supporting rod (121) is placed in a third U-shaped groove (1221) of the second supporting rod (122), a second through hole (1214) on the end of the first supporting rod is concentric with the third through hole (1223), a first cylindrical head bolt (123) is arranged in the through hole, and a nut is screwed at the other end of the bolt to connect the first supporting rod (121) with the second supporting rod (122); similarly, the other pair of the first support rods (121) and the second support rods (122) are connected through second cylindrical head bolts (124).
The screw rod transmission shaft (125) is designed into a stepped shaft shape with a thick middle part and two thin ends, wherein one end is provided with a first left-handed thread (1251), the other end is provided with a first right-handed thread (1252), and the end head of the end provided with the right-handed thread is provided with a first key groove (1253); the first cylindrical head bolt (123) is installed on a first left-hand thread (1251) of the screw rod transmission shaft (125) through a first left-hand thread through hole (1231), and the second cylindrical head bolt (124) is installed on a first right-hand thread (1252) of the screw rod transmission shaft (125) through a first right-hand thread through hole (1241).
A fifth through hole (1261) is formed in the shaft section of the third cylindrical head bolt (126), and the stud bolt (127) is designed into a stepped shaft shape with a thick middle part and thin two ends; the four third cylindrical head bolts (126) are respectively inserted into the first through holes (1213) of the two first supporting rods (121) and the fourth through holes (1224) of the two second supporting rods (122), and nuts are respectively screwed on the ends of the four third cylindrical head bolts; the tool head (128) is disc-shaped, a sixth through hole (1281) is formed in the center of the tool head, the tool head (128) is installed on a thick shaft section in the middle of the stud bolt (127) through the sixth through hole (1281) in the center of the tool head, the two ends of the two stud bolts (127) are respectively inserted into the fifth through holes (1261) of the four third cylindrical stud bolts (126), and nuts are screwed on the ends of the two stud bolts to fix the two stud bolts.
3. The inside roll forming device of metal bellows according to claim 1, wherein said restraint mechanism (13) comprises four restraint rods (131), four restraint bolts (132), and two restraint support shafts (133). The restraint support shaft (133) is in a stepped shaft shape with a thick middle part and two thin ends, a seventh through hole (1331) is formed in the middle of the shaft section with the thick middle part, and first circular grooves (1332) are formed in the shaft sections with the thin two ends respectively; the two ends of the restraint rod (131) are respectively provided with an eighth through hole (1311), the two restraint support shafts (133) penetrate through the screw transmission shaft (125) through a middle seventh through hole (1331), and the restraint rod (131) is respectively installed on the two sides of the thicker shaft section of the restraint support shaft (133) through the eighth through hole (1311); the restraint bolt (132) include optical axis section and screw thread section, restraint bolt (132) optical axis end be equipped with second circular slot (1321). The four constraint bolts (132) are respectively screwed into the first threaded holes (1215) of the two first support rods (121) and the second threaded holes (1225) of the two second support rods (122); one end of the restraining rod (131) is arranged on the restraining bolt (132) through an eighth through hole (1311) on the restraining rod, the other end of the restraining rod is arranged on the restraining support shaft (133), and a retainer ring for positioning is clamped on the second circular groove (1321) of the restraining bolt (132) and the first circular groove (1332) of the restraining support shaft (133).
4. The inside roll forming device of metal bellows according to claim 3, wherein the housing (11) comprises a circular left end cap (111), two semi-cylindrical housings (112), and a circular right end cap (113), the circular left end cap (111) and the circular right end cap (113) are fixed at two ends of the two semi-cylindrical housings (112), and two second blind holes (1122) are formed on the inner cylindrical surface of the semi-cylindrical housing (112) for providing support for two ends of two constrained support shafts; a first blind hole (1112) is formed in the center of the round left end cover (111) and provides support for one end of the lead screw transmission shaft (125) with left-hand threads; the center of the round right end cover (113) is provided with a ninth through hole (1132) for extending one end of the screw transmission shaft (125) with a right-handed thread.
5. The inside roll forming device of the corrugated metal pipe according to claim 1, wherein one end of the screw rod (24) is provided with a second left-hand thread (241), the other end is provided with a second right-hand thread (242), and a second left-hand thread through hole (252) is formed in the middle of the first pressing block (25); and a second right-hand threaded through hole (262) is formed in the middle of the second pressing block (26). The first pressing block (25) and the second pressing block (26) are respectively arranged on the second left-hand thread (241) and the second right-hand thread (242) of the screw rod (24) through a second left-hand thread through hole (252) and a second right-hand thread through hole (262) in the middle.
6. The roll forming device for the inside of a corrugated metal pipe as claimed in claim 1, wherein said tool shaft (31) has a convex disk shape at one end and is fixed to said circular right end cap (113), and a square shank at the other end for easy holding.
Technical Field
The invention relates to a pipe fitting internal rolling forming device, in particular to a metal corrugated pipe internal rolling forming device.
Background
The metal corrugated pipe is a pipe part with regular wavy shape and transverse corrugations. The high-strength high-elasticity high-strength elastic material has high bending fatigue strength and stable elasticity, can generate axial, transverse and angular displacements under the action of external force, and is widely applied to various industrial fields such as national defense, petrochemical industry, aerospace and the like. The traditional corrugated pipe processing method comprises welding forming, mechanical forming, hydraulic forming and the like, various defects such as incomplete penetration and air holes, low roundness, incomplete waveform and the like easily occur in key processes in the process flow, and the quality of a final formed part is difficult to ensure. The incremental forming technology of the pipe parts introduces the idea of layered manufacturing, loads are applied through a simple forming device, required parts are obtained by layering one by one according to a preset forming track, various complex forming parts can be formed, a mold does not need to be manufactured in advance, the required manufacturing period is short, and the incremental forming technology is suitable for various small-batch production and low-cost rapid forming of new products.
Disclosure of Invention
Aiming at the internal incremental forming process of the metal corrugated pipe, the invention provides the internal rolling forming device of the metal corrugated pipe, which has the advantages of modular design, strong universality, simple operation, high efficiency and convenient assembly and disassembly.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a rolling forming device for the interior of a metal corrugated pipe comprises a rolling forming module, a clamping module and a connecting module.
The rolling forming module comprises a shell, a transmission mechanism and a constraint mechanism, wherein the constraint mechanism is arranged on the transmission mechanism and used for constraining the degree of freedom of the transmission mechanism, and the shell is used for wrapping and fixing the transmission mechanism and the constraint mechanism;
the clamping module comprises a base, two stop blocks, a slide rail, a screw rod, a first press block, a second press block, a rotating handle, a clamp cover and a T-shaped pressing tool, wherein a rectangular groove is formed in one end of the base, the two stop blocks are respectively fixed at two ends of the rectangular groove, the first press block and the second press block are arranged in the rectangular groove in a sliding mode and are sleeved outside the screw rod and the slide rail, two ends of the screw rod and the slide rail are supported on the stop blocks, and the rotating handle is installed at one end of the screw rod and used for achieving linkage of the rotating handle and the screw rod; the clamp cover is fixed on the base, and the T-shaped pressing tool passes through a hole in the clamp cover and is screwed into the clamp cover;
the connecting module comprises a tool shaft, a driving shaft and a coupler, wherein the tool shaft is a stepped hollow shaft, the outer part of the stepped hollow shaft is sleeved on the driving shaft, one end of the driving shaft is connected with a transmission mechanism of the rolling forming module, the other end of the driving shaft penetrates through the clamping module and is connected with the motor through the coupler, one end of the tool shaft is fixed on the shell of the rolling forming module, and the other end of the tool shaft is positioned in the clamping module and is used for being clamped by the clamping module.
Furthermore, the transmission mechanism comprises two first support rods, two second support rods, a first cylindrical head bolt, a second cylindrical head bolt, a lead screw transmission shaft, four third cylindrical head bolts, two stud bolts and two tool heads, wherein one end of each first support rod is provided with a first U-shaped groove, the other end of each first support rod is provided with a second U-shaped groove, a first through hole is formed in the end of the first U-shaped groove, a second through hole is formed in the end of the second U-shaped groove, and a first threaded hole is formed in the middle of each rod;
a third U-shaped groove is formed in one end of the second supporting rod, a fourth U-shaped groove is formed in the other end of the second supporting rod, a third through hole is formed in the end of the third U-shaped groove, a fourth through hole is formed in the end of the fourth U-shaped groove, and a second threaded hole is formed in the middle of the second supporting rod;
the shaft sections of the first cylindrical head bolt, the second cylindrical head bolt and the third cylindrical head bolt comprise a section of smooth shaft section and a section of thread section;
the optical axis section of first cylinder head bolt be equipped with first left-handed screw through-hole, the optical axis section of second cylinder head bolt be equipped with first right-handed screw through-hole. The end of the second U-shaped groove of the first supporting rod is arranged in a third U-shaped groove of the second supporting rod, a second through hole on the end of the second U-shaped groove is concentric with a third through hole, a first cylindrical head bolt is arranged in the through hole, and a nut is screwed at the other end of the bolt to connect the first supporting rod and the second supporting rod; in a similar way, the other pair of the first supporting rods is connected with the second supporting rod through a second cylinder head bolt.
The screw transmission shaft is designed into a stepped shaft shape with a thick middle part and thin two ends, wherein one end is provided with a first left-handed thread, the other end is provided with a first right-handed thread, and the end head of the right-handed thread is provided with a first key groove; the first cylindrical head bolt is arranged on a first left-hand thread of the screw rod transmission shaft through a first left-hand thread through hole, and the second cylindrical head bolt is arranged on a first right-hand thread of the screw rod transmission shaft through a first right-hand thread through hole.
The shaft section of the third cylindrical head bolt is provided with a fifth through hole, and the stud bolt is designed into a stepped shaft shape with a thick middle part and thin two ends; the four third cylindrical head bolts are respectively inserted into the first through holes of the two first supporting rods and the fourth through holes of the two second supporting rods, and nuts are respectively screwed on the end heads; the tool head is disc-shaped, a sixth through hole is formed in the center of the tool head, the tool head is installed on the thick shaft section in the middle of the stud bolt through the sixth through hole in the center of the stud bolt, the fifth through holes of the four third stud bolts are inserted into the two ends of the two stud bolts respectively, and nuts are screwed on the ends of the two stud bolts to fix the two stud bolts.
Furthermore, the constraint mechanism comprises four constraint rods, four constraint bolts and two constraint support shafts. The restraint support shaft is in a stepped shaft shape with a thick middle part and two thin ends, a seventh through hole is arranged in the middle of the shaft section with the thick middle part, and the shaft sections with the thin two ends are respectively provided with a first circular groove; the two ends of the constraint rod are respectively provided with eighth through holes, the two constraint support shafts penetrate through the screw transmission shaft through a seventh through hole in the middle, and the constraint rods are respectively arranged on two sides of a thicker shaft section of the constraint support shafts through the eighth through holes; the constraint bolt comprises a smooth shaft section and a threaded section, and a second circular groove is formed in the smooth shaft end of the constraint bolt. The four constraint bolts are screwed into the first threaded holes of the two first support rods and the second threaded holes of the two second support rods respectively; one end of the restraint rod is arranged on the restraint bolt through an eighth through hole on the restraint rod, the other end of the restraint rod is arranged on the restraint support shaft, and the second circular groove of the restraint bolt and the first circular groove of the restraint support shaft are clamped with upper holes through check rings for positioning.
Furthermore, the shell comprises a circular left end cover, two semi-cylindrical shells and a circular right end cover, the circular left end cover and the circular right end cover are fixed at two ends of the two semi-cylindrical shells, and two second blind holes are formed in the inner cylindrical surface of the semi-cylindrical shell and used for providing support for two ends of the two restraining support shafts; the center of the round left end cover is provided with a first blind hole which provides support for one end of the lead screw transmission shaft with left-hand threads; and a ninth through hole is formed in the center of the circular right end cover and is used for extending out of one end of the lead screw transmission shaft with a right-handed thread.
Furthermore, one end of the screw rod is provided with a second left-hand thread, the other end of the screw rod is provided with a second right-hand thread, and the middle of the first pressing block is provided with a second left-hand thread through hole; and a second right-hand threaded through hole is formed in the middle of the second pressing block. The first pressing block and the second pressing block are respectively arranged on the second left-hand thread and the second right-hand thread of the screw rod through a second left-hand thread through hole and a second right-hand thread through hole in the middle.
Furthermore, one end of the tool shaft is in a convex disc shape and fixed on the circular right end cover, and the other end of the tool shaft is a square handle, so that the tool shaft is convenient to clamp.
The invention has the following beneficial effects:
(1) in the rolling forming device in the metal corrugated pipe, the screw transmission shafts with the two ends respectively designed as left-handed threads and right-handed threads are applied with torque to drive the first cylindrical bolt and the second cylindrical bolt on the screw transmission shafts to move relatively, so that the tool head generates radial displacement through the first supporting rod and the second supporting rod, local extrusion and rolling are generated in the thin-wall pipe rotating at high speed, and the thin-wall pipe generates continuous plastic deformation.
(2) In the rolling forming device in the metal corrugated pipe, the first support rod and the second support rod are restricted by the restricting rod to generate unique determined movement.
(3) In the rolling forming device in the metal corrugated pipe, the first pressing block and the second pressing block are driven to clamp the tool shaft and automatically position the tool shaft at the central position by applying torque to the screw rods with the two ends respectively designed into left-handed threads and right-handed threads.
(4) In the rolling forming device in the metal corrugated pipe, the radial feeding speed of the tool head is controlled by controlling the rotating speed of the motor, and the radial feeding amount of the tool head is controlled by controlling the revolution of the motor, so that target parts with different qualities and different shapes can be conveniently formed.
(5) The rolling forming device in the metal corrugated pipe is modularized, convenient to replace and high in universality.
Drawings
FIG. 1 is a schematic view showing the overall structure of a roll forming apparatus for the inside of a metal bellows according to the present invention;
FIG. 2 is a schematic view of the drive mechanism and the restraint mechanism of FIG. 1;
FIG. 3 is a schematic view of detailed parts of the first support bar of FIG. 2;
FIG. 4 is a schematic view of detailed parts of the second support rod of FIG. 2;
FIG. 5 is a schematic view of the first stud detail of FIG. 2;
FIG. 6 is a schematic view of the second cylindrical head embodiment of FIG. 2;
FIG. 7 is a schematic view of detailed parts of the screw drive shaft of FIG. 2;
FIG. 8 is a schematic view of a detail of the third cylinder head of FIG. 2;
FIG. 9 is a schematic view of the restraining support shaft of FIG. 2 in detail;
FIG. 10 is a schematic view of the captive bolt of FIG. 2 with details;
FIG. 11 is a schematic view of the circular left end cap embodiment of FIG. 1;
FIG. 12 is a schematic view of particular parts of the semi-circular housing of FIG. 1;
FIG. 13 is a schematic view of the circular right end cap embodiment of FIG. 1;
FIG. 14 is a schematic view of a clamping module of FIG. 1;
FIG. 15 is a schematic view of a detail of the base of FIG. 14;
FIG. 16 is a schematic view of the detail of the stop of FIG. 14;
FIG. 17 is a schematic view of the detail of the screw of FIG. 14;
FIG. 18 is a schematic view of details of the first press block of FIG. 14;
FIG. 19 is a schematic view of details of the second press block of FIG. 14;
FIG. 20 is a schematic view of particular parts of the rotary handle of FIG. 14;
FIG. 21 is a schematic view of the slide rail of FIG. 14 showing details thereof;
FIG. 22 is a schematic view of the connection module of FIG. 1;
FIG. 23 is a schematic detail view of the drive shaft of FIG. 22;
in the figure, the roll forming module 1, the clamping module 2, the connecting module 3, the motor 4, the housing 11, the circular
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and preferred embodiments, and the objects and effects of the present invention will become more apparent, and the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1 to 23, the internal rolling forming device for metal corrugated pipes of the present invention includes a rolling forming module 1, a clamping module 2, and a connecting module 3.
The roll forming module 1 comprises a shell 11, a transmission mechanism 12 and a constraint mechanism 13. The transmission mechanism 12 includes two
the shaft sections of the first
the optical axis section of the
The screw transmission shaft 125 is designed into a stepped shaft shape with a thick middle part and thin two ends, wherein one end is provided with a first left-handed thread 1251, the other end is provided with a first right-handed thread 1252, and the end head of the end provided with the right-handed thread is provided with a first key groove 1253; the first
The optical axis section of the
The restraining mechanism 13 includes four restraining rods 131, four restraining
The shell 11 comprises a circular
The clamping module 2 comprises a
The connecting module 3 comprises a
When mounting, the roll-forming module 1 is first mounted. Firstly, the end of the second
Next, the clamping module 2 is mounted. The first
Finally, the connection module 3 is installed. The first key groove 1253 of the screw shaft 125 is first fitted with a key, and then the second
When the motor is used, the
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and although the invention has been described in detail with reference to the foregoing examples, it will be apparent to those skilled in the art that various changes in the form and details of the embodiments may be made and equivalents may be substituted for elements thereof. All modifications, equivalents and the like which come within the spirit and principle of the invention are intended to be included within the scope of the invention.
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